66112516 has 6 divisors (see below), whose sum is σ = 115696910. Its totient is φ = 33056256.

The previous prime is 66112463. The next prime is 66112531. The reversal of 66112516 is 61521166.

It can be written as a sum of positive squares in only one way, i.e., 56190016 + 9922500 = 7496^2 + 3150^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8264061 + ... + 8264068.

Almost surely, 2^66112516 is an apocalyptic number.

It is an amenable number.

66112516 is a deficient number, since it is larger than the sum of its proper divisors (49584394).

66112516 is a wasteful number, since it uses less digits than its factorization.

66112516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16528133 (or 16528131 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 66112516 is about 8130.9603368852. The cubic root of 66112516 is about 404.3535202517.

The spelling of 66112516 in words is "sixty-six million, one hundred twelve thousand, five hundred sixteen".